CN209487208U - A kind of mineral insulation aluminium sheath fire-retardant fireproof power cable - Google Patents
A kind of mineral insulation aluminium sheath fire-retardant fireproof power cable Download PDFInfo
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- CN209487208U CN209487208U CN201822257280.0U CN201822257280U CN209487208U CN 209487208 U CN209487208 U CN 209487208U CN 201822257280 U CN201822257280 U CN 201822257280U CN 209487208 U CN209487208 U CN 209487208U
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- 238000009413 insulation Methods 0.000 title claims abstract description 101
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 52
- 239000004411 aluminium Substances 0.000 title claims abstract description 48
- 239000003063 flame retardant Substances 0.000 title claims abstract description 18
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 15
- 239000011707 mineral Substances 0.000 title claims abstract description 15
- 239000004020 conductor Substances 0.000 claims abstract description 59
- 239000000779 smoke Substances 0.000 claims abstract description 10
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 9
- 150000002367 halogens Chemical class 0.000 claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 238000004049 embossing Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 83
- 239000000919 ceramic Substances 0.000 claims description 36
- 239000010445 mica Substances 0.000 claims description 33
- 229910052618 mica group Inorganic materials 0.000 claims description 33
- 239000004744 fabric Substances 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 12
- 239000012790 adhesive layer Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000005439 thermosphere Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of mineral insulation aluminium sheath fire-retardant fireproof power cables, it includes cable core, cable core periphery is successively coated with system packet fire lagging from inside to outside, insulate water-blocking buffer layer, aluminium sheath layer, fire insulation thermal insulation layer and serving, cable core includes three main fire-proof insulation cores and three ground fire-proof insulation cores, three main fire-proof insulation cores contact with each other, three ground fire-proof insulation cores are between three main fire-proof insulation cores in edge voids, main fire-proof insulation core and ground fire-proof insulation core all include conductor, conductor periphery successively coats auxiliary insulating layer and split-phase fire lagging from inside to outside, aluminium sheath layer continuously extruded by round aluminum rod or aluminium strip longitudinal wrap embossing and be welded on insulation water-blocking buffer layer on form, fire insulation thermal insulation layer is overlapped by low smoke, zero halogen glass fibre belt and is formed outside aluminium sheath layer.The utility model electric conductivity with higher, anti-flammability and fire line and electromagnetic compatibility and anti-interference, reliable guarantee, thus service life with higher.
Description
Technical field
The utility model relates to a kind of power cables, and in particular to a kind of mineral insulation aluminium sheath fire-retardant fireproof electric power electricity
Cable.
Background technique
Currently used for the typical mineral insulation aluminium sheath fireproof cable of three-phase five-wire mode electrical power distribution system, there are it is following not
Foot:
1) the core number of cable has three+two cores, four+one cores, five cores, 3 major class, including three master cores, a neutral conductor
And a protective ground wire, and the aluminium sheath of the cable will carry out electrical grounding when in use, which has carrying biggish
Short circuit current can replace protective ground wire completely；
2) series five-core cable 50mm2And the above specification conductor generallys use fan-shaped compact conductor or shoe is pressed and led
Body, fan-shaped compact conductor or shoe compact conductor are fortuitous conductor, and electric field in use will appear irregular uneven situation,
Complete three power supply systems of the series five-core cable, when three master core current balance types, the electric current of neutral core is zero；
When higher hamonic wave generates, by the multiple reflections of cable, will occur being stacked this wave crest with trough with wave crest or trough
The chance added, the longer stacking machine of cable more multilist can show also just to be more obvious.In addition this big capacitor of cable itself is to high order
Harmonic wave just plays the role of amplification, the current component that higher hamonic wave generates in neutral conductor in-core without phase difference, so electric current
The several times of former component will be superimposed as, neutral core will soon be breakdown under high-frequency impulse；
3) conductor of cable presses twisted copper conductors using the 2nd kind of circle, the conductor compacting coefficient about 0.9, conductor diameter
It is still larger, stranded conductor outer layer pitch diameter is smaller (generally 13 times or so), conductor resistance rate is larger (to be approximately
17.587mm2Ω/km or so), still there are biggish gap and stress between outer layer single line, not to the effect of the flame retardant coating power outside it
Uniformity；
4) mica tape is directly overlapped on conductor, and the insulation performance of cable leans on mica carrying material to guarantee completely, when
Mica belt surface generates the bending that tension hinders cable, the conductor of the cable work strong to mica tape on the outside of when cable bends
With with using the increase conductor of time to mica with different degrees of damage；
5) when cable burns, active force increasing of the conductor temp.-elevating and expansion of cable to mica tape, conductor is to cloud
Master tape causes mechanical damage, will ultimately result in the decreasing insulating of mica tape and punctures, and in addition ripple copper sheath is as sent out
Raw rupture, long-play, outside moisture enter the inside of cable, will also result in the decreasing insulating of cable and hit
It wears；
6) thickness of insulating layer of multicore cable is the half of the thickness of insulating layer of single-core cable, generally uses Halogen outside cable core
The overlapping of low smoke high flame retardant band is wrapped, and halogen-free low-smoke high-flame band insulation performance is not good enough, insulative dielectric between the conductor of multicore cable
The conductor of intensity and single-core cable is suitable with dielectric strength between aluminium sheath (insulation effective thickness is consistent), but multicore cable
Some are insufficient for dielectric strength between conductor and aluminium sheath；
7) since the fusing point of aluminium sheath is low, when it is external when the temperature is excessively high, be easy to burn out aluminium sheath, to damage cable
Core.
Utility model content
The utility model to solve the above-mentioned problems, to provide a kind of mineral insulation aluminium sheath fire-retardant fireproof electric power electricity
Cable.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
A kind of mineral insulation aluminium sheath fire-retardant fireproof power cable, the cable includes cable core, and the cable core periphery is by interior
It is successively coated with system packet fire lagging, insulation water-blocking buffer layer, aluminium sheath layer, fire insulation thermal insulation layer and serving outward, it is described
Cable core includes three main fire-proof insulation cores and three ground fire-proof insulation cores, and three main fire-proof insulation cores contact with each other, and three
Root fire-proof insulation core be between three main fire-proof insulation cores in edge voids, the main fire-proof insulation core and ground are prevented
Fiery insulated wire cores all include conductor, and the conductor periphery is successively coated from inside to outside described in auxiliary insulating layer and split-phase fire lagging
Aluminium sheath layer continuously extruded by round aluminum rod or aluminium strip longitudinal wrap embossing and be welded on insulation water-blocking buffer layer on form, it is described every
Fire screen thermosphere is overlapped by low smoke, zero halogen glass fibre belt and is formed outside aluminium sheath layer.
In a preferred embodiment of the utility model, the conductor is to press regular twisted 2nd kind using layering
Molded line is twisted circle and presses copper conductor.
In a preferred embodiment of the utility model, the auxiliary insulating layer is overlapped wrapped form by polyester belt.
In a preferred embodiment of the utility model, the split-phase fire lagging is closely weighed by ceramic mica tape
It is folded to be formed on auxiliary insulating layer.
In a preferred embodiment of the utility model, the system packet fire lagging by ceramic mica tape be overlapped around
Packet is outside cable core, and the insulation water-blocking buffer layer is overlapped outside system packet fire lagging by insulation waterstop, the outer quilt
Layer is to extrude low smoke, zero halogen polyolefin flame-retardant oversheath.
In a preferred embodiment of the utility model, the ceramic mica tape includes ceramic mica paper layer, pottery
Porcelain glass fabric layer and adhesive layer, the ceramic glass fabric layer is fixed in ceramic mica paper layer by adhesive layer, described
Ceramic glass fabric layer is formed in glass fabric layer by ceramic powder even application, and the adhesive layer is specially that heat-resistant fireproof has
Machine silicone resin is adhesive, and adhesive content is small in ceramic mica tape and has lesser heat release, in ceramic mica tape
There is no hygroscopic materials ingredient.
The beneficial effects of the utility model are:
It is the utility model electric conductivity with higher, anti-flammability and fire line and electromagnetic compatibility and anti-interference, reliable
Protection, thus service life with higher.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
In order to be easy to understand the technical means, creative features, achievement of purpose, and effectiveness of the utility model, under
Face combines and is specifically illustrating, and the utility model is further described.
Referring to Fig. 1, mineral insulation aluminium sheath fire-retardant fireproof power cable provided by the utility model is mainly used for high level
Building, public place and the special place for having fire protection requirement comprising cable core 100.
Cable core 100 includes three main fire-proof insulation cores 110 and three ground fire-proof insulation cores 120, and three main fire prevention are exhausted
Edge core 110 contacts with each other, and circumferentially, 120 ° of spacing distributions, and three ground fire-proof insulation cores 120 are in three main fire prevention
Between insulated wire cores 110 in edge voids, guaranteeing in this way can 100 roundness of cable core.
In addition, in order to further increase roundness, can between three major insulation cores 110 filling mineral in edge voids
Matter rope.
Main fire-proof insulation core 110 is different with the size of ground fire-proof insulation core 120, and ground fire-proof insulation core 120 is led
Body nominal section approximation is the 1/6 of the conductor nominal section of main fire-proof insulation core 110, but the structure type and level of each material
It is identical, it all include conductor 200.
Conductor 200 is specially to press the twisted circle of regular the 2nd kind of twisted molded line using layering to press copper conductor.
Conductor 200 is specially regular twisted, can be divided into several conductor layers, and each conductor layer is layered and presses, conductor
Central core single line radical concretely 1 or 2 or 3 or 4.
When central core is 1 single line, a central core concretely round single line, when for 2 or 3 or 4, center
Layer specific is all special-shaped single line, and adjacent outward layer abnormity type single line radical is 6 more than its internal layer abnormity type single line radical, in this way
So that 200 tactical rule of conductor is stablized.
In addition, 200 single line radical of conductor also complies with the universal architecture of cable conductor, specific selection is pressed in each conductor layer layering
High abrasion, high-precision, the layering of high-strength nano coating mold are pressed, so that 200 smooth in appearance of conductor, tightening factor exist
Gap less friction is big between 0.97 or more, single line, conductor shape entirety stress and stable structure is unlikely to deform, single line when cable bend
Between slide it is small, thus to the more uniform situation excessive without by-local forces of effect of auxiliary 210 power of insulating layer.
Furthermore 200 outer layer lay ratio of conductor can be amplified to 18 times or so, so that it is come into full contact between 200 single line of conductor,
Smaller resistivity (is approximately 17.327mm2Ω/km or so), its conductor claims compared with the 2nd kind of circle presses twisted copper conductors
Weight section is smaller, thus that can save copper material dosage to a certain degree, so that the light-weight of cable, outer diameter are small.
Auxiliary insulating layer 210 and split-phase fire lagging 220 are successively coated from inside to outside in 200 periphery of conductor.
Auxiliary insulating layer 210 specifically by polyester belt be overlapped it is wrapped form, due to polyester belt have preferable insulation performance, work as electricity
When cable is bent, conductor can produce the effect of power to auxiliary insulating layer 210, damage to mitigate to the machinery of split-phase fire lagging 220
Wound, when cable burns, polyester belt is combusted into carbon, forms gap between conductor 200 and split-phase fire lagging 220,
Conductor expanded by heating mitigates effect of the conductor 200 to 220 power of split-phase fire lagging.
Split-phase fire lagging 220 is specifically closely overlapped by ceramic mica tape and is formed on auxiliary insulating layer 210, by
There is preferable insulation performance in ceramic mica tape, even if being still able to maintain preferable insulation performance after cable fire.
It is successively coated with system packet fire lagging 310, insulation water-blocking buffer layer 320, aluminium from inside to outside in 100 periphery of cable core
Restrictive coating 330, fire insulation thermal insulation layer 340 and serving 350.
System packet fire lagging 310 is specifically formed by the overlapping of ceramic mica tape is wrapped, since ceramic mica tape has
Preferable insulation performance, even if being still able to maintain preferable insulation performance after cable fire.
In addition, the ceramics that ceramic mica tape and system packet fire lagging 310 that split-phase fire lagging 220 uses use
Changing mica tape all includes ceramic mica paper layer, ceramic glass fabric layer and adhesive layer, and ceramic glass fabric layer passes through adhesive layer
It is fixed in ceramic mica paper layer, ceramic glass fabric layer is formed in glass fabric layer by ceramic powder even application, described
Adhesive layer is specially that heat-resistant fireproof organic siliconresin is adhesive, and adhesive content is small in ceramic mica tape and has smaller
Heat release, there is no hygroscopic materials ingredient in ceramic mica tape, so that the application becomes ceramic-like after burning
Hard shell still has preferable insulation performance, which stablizes fine and close air-gap-free, is chronically exposed in air and does not inhale
Tide, though cable has been burned, split-phase fireprotection layer 220 and system packet fire lagging 310 still have preferable insulation performance, cable
Remain to the operation that is securely and reliably powered.
Combustibility by the cable of 120 composition of above-mentioned main fire-proof insulation core 110 and ground fire-proof insulation core is specific
It is as follows:
Furthermore the direction of lay of main fire-proof insulation core 110 and ground fire-proof insulation core 120 is Chong Die with ceramic mica tape
Lapping direction is identical, so that mica tape is overlapped lapping structure and stablizes without loose.
Insulation water-blocking buffer layer 320 is specifically overlapped by insulation waterstop and is formed outside system packet fire lagging 310, absolutely
Edge water-blocking buffer layer 320 have certain insulation performance, it may have diameter longitudinal water-blocking effect, when cable aluminium sheath layer 330 and
When serving 350 has breakage, insulation water-blocking buffer layer 320 can effectively stop Exterior cable moisture and enter inside cable, thus
The insulation performance of cable will not be reduced.
In addition when cable bend, insulation water-blocking buffer layer 320 has buffer function, can reduce 330 pairs of aluminium sheath layer systems
Packet fire lagging 310 causes to damage, so that it is guaranteed that system packet fire lagging 310 has always preferable insulation performance, furthermore,
When cable burns, insulation waterstop is combusted into carbon, is formed between aluminium sheath layer 330 and system packet fire lagging 310
Gap mitigates the effect of 330 pairs of aluminium sheath layer system 310 power of packet fire lagging.
Aluminium sheath layer 330, good airproof performance have preferable moisture-proof, waterproof, resistance to mechanical external force, can effectively protect
The insulation layer structure of card cable is not damaged, when cable fire, aluminium sheath layer 330 can by fiery gear completely outside, have compared with
Fire prevention well, fire insulation, fire retardation, the structure of split-phase fire lagging 220 and packet fire lagging 310 of uniting after being burnt is in aluminium
Restrictive coating 330 is not also destroyed under protecting, so that it is guaranteed that cable still has preferable insulation performance, cable is remained to securely and reliably
Operation, the transmitting of maskable external electromagnetic interference and this route electromagnetism, the conductor performance of aluminium sheath layer 320 meet the guarantor of cable
The direct current resistance requirement of earth conductor is protected, separately the protective grounding as electrical equipment, protects electrical equipment and personal safety, thus
The protective grounding conductor in cable is eliminated, the outer diameter and weight and the material cost for reducing cable of cable are reduced.
Aluminium sheath layer 330 is specifically continuously extruded by round aluminum rod or aluminium strip longitudinal wrap embossing and is welded on insulation and blocks water buffering
It is formed on layer 320, is equivalent to the copper sheath used in the prior art, cost can be greatly saved and mitigate the weight of cable,
So that cable is easy to laying installation.
Fire insulation thermal insulation layer 340 is specifically overlapped by low smoke, zero halogen glass fibre belt and is formed outside aluminium sheath layer 330, due to
Low smoke, zero halogen glass fibre belt Heat liberation unit is small, so that it is with preferable fire insulation and heat-blocking action.
Fire insulation thermal insulation layer 340 is for cooperating with aluminium sheath layer 330, it is ensured that cable external firing heat during burning passes
To aluminium sheath layer 330 temperature rise within aluminium fusing point, so that it is guaranteed that aluminium sheath layer 330 is not melted destruction, so as to cable core
100 are protected.
Serving 350 is specifically extruded on fire insulation thermal insulation layer 340 using low smoke, zero halogen polyolefin flame-retardant protective cover material, is had
Lesser heat release, anti-flammability is preferable, has preferable mechanical and physical performance, have protect very well the aluminium sheath layer 320 of cable not by
Damage and corrosion.
In this way, implementation through the above scheme, the conductor 200 in cable core 100 is made into 3+3 structure, three ground by the application
Fire-proof insulation core 120 is filled out between three main fire-proof insulation cores 110 respectively on the gap at edge, it is possible to reduce filler material
It using, the electric conductivity after three ground its conductors of fire-proof insulation core and company meets the direct current resistance requirement of the neutral conductor of cable,
The phase of three ground fire-proof insulation cores mutually lags 120 °, the state of a symmetrical balance is formd, so that electric current will not be folded
Add, effectively reduce harm of the higher hamonic wave to cable, core structure is symmetrical, electric fields uniform when energization, cable service life
It is longer.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of mineral insulation aluminium sheath fire-retardant fireproof power cable, which is characterized in that the cable includes cable core, the cable core
Periphery is successively coated with system packet fire lagging, insulation water-blocking buffer layer, aluminium sheath layer, fire insulation thermal insulation layer and outer quilt from inside to outside
Layer, the cable core include three main fire-proof insulation cores and three ground fire-proof insulation cores, and three main fire-proof insulation cores are mutual
Contact, three ground fire-proof insulation cores are between three main fire-proof insulation cores in edge voids, the main fire-proof insulation line
Core and ground fire-proof insulation core all include conductor, and the conductor periphery successively coats auxiliary insulating layer from inside to outside and split-phase fire prevention is exhausted
Edge layer, the aluminium sheath layer continuously extruded by round aluminum rod or aluminium strip longitudinal wrap embossing and be welded on insulation water-blocking buffer layer on and
At the fire insulation thermal insulation layer is overlapped by low smoke, zero halogen glass fibre belt and is formed outside aluminium sheath layer.
2. a kind of mineral insulation aluminium sheath fire-retardant fireproof power cable according to claim 1, which is characterized in that described to lead
Body is to press the twisted circle of regular the 2nd kind of twisted molded line using layering to press copper conductor.
3. a kind of mineral insulation aluminium sheath fire-retardant fireproof power cable according to claim 1, which is characterized in that described auxiliary
Insulating layer is overlapped wrapped form by polyester belt.
4. a kind of mineral insulation aluminium sheath fire-retardant fireproof power cable according to claim 1, which is characterized in that described point
Phase fire lagging is closely overlapped by ceramic mica tape and is formed on auxiliary insulating layer.
5. a kind of mineral insulation aluminium sheath fire-retardant fireproof power cable according to claim 1, which is characterized in that the system
Packet fire lagging is overlapped outside cable core by ceramic mica tape, and the insulation water-blocking buffer layer is overlapped by insulation waterstop
Outside system packet fire lagging, the serving is to extrude low smoke, zero halogen polyolefin flame-retardant oversheath.
6. a kind of mineral insulation aluminium sheath fire-retardant fireproof power cable according to claim 4 or 5, which is characterized in that institute
Stating ceramic mica tape includes ceramic mica paper layer, ceramic glass fabric layer and adhesive layer, and the ceramic glass fabric layer is logical
It crosses adhesive layer to be fixed in ceramic mica paper layer, the ceramic glass fabric layer is by ceramic powder even application in glass fabric layer
On form, the adhesive layer is specially that heat-resistant fireproof organic siliconresin is adhesive, adhesive content in ceramic mica tape
It is small and there is lesser heat release, there is no hygroscopic materials ingredient in ceramic mica tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822257280.0U CN209487208U (en) | 2018-12-29 | 2018-12-29 | A kind of mineral insulation aluminium sheath fire-retardant fireproof power cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822257280.0U CN209487208U (en) | 2018-12-29 | 2018-12-29 | A kind of mineral insulation aluminium sheath fire-retardant fireproof power cable |
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| CN209487208U true CN209487208U (en) | 2019-10-11 |
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ID=68128111
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540525A (en) * | 2020-05-26 | 2020-08-14 | 安徽太平洋电缆股份有限公司 | Heat-insulating bottle type B1-grade light fireproof cable |
-
2018
- 2018-12-29 CN CN201822257280.0U patent/CN209487208U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540525A (en) * | 2020-05-26 | 2020-08-14 | 安徽太平洋电缆股份有限公司 | Heat-insulating bottle type B1-grade light fireproof cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A mineral insulated aluminum sheathed flame-retardant and fire-resistant power cable Granted publication date: 20191011 Pledgee: China Co. truction Bank Corp Shanghai Minhang branch Pledgor: SHANGHAI NANDA GROUP Co.,Ltd. Registration number: Y2024980016367 |